3 years ago

I need DISPLACEMENT please.I have Average speed, i need Displacement.

Physics

1 answer:

Lapatulllka [165]3 years ago

4 0

Define displacement and I'll help you

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Answer:

External force on him will be 112 N

Explanation:

We have given the mass of the sprinter m =70 kg

Acceleration of the sprinter $a=1.6m/sec^2$

We have to find the net external force

According to second law of motion force = mass ×acceleration

Force is dependent on the mass and acceleration

So $F=70\times 1.6=112 N$

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3 years ago

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Answer:

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2 years ago

What is the size of the smallest vertical plane mirror in which a 6 ft tall person standing erect can see her full-length image?

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Answer:

3 ft

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The answer you are looking for is B, hope this helps.

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kherson [118]

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To produce electromagnetic waves, electric and magnetic fields must be vibrating.

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The sun produces electromagnetic waves. A lot of human activities also does this.

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